dewpoint

(The word "dewpoint" arose from the observation that dew forms on grass when the grass cools, by radiation to the sky, to a temperature equal to or less than the wetbulb temperature of the air above it.)

Chapter 7 1982

(The dewpoint is the temperature at which the air becomes saturated with water vapor and it begins to precipitate.

Blog updates 2009

An astute commenter - Steve-wxtalkwordpresscom - noted that as of 10 p.m. it was already down to 36 degrees at Reagan National with a wind from the northeast and a dewpoint of 25.

State of the snowstorm: Live blogging Jason Samenow 2011

The vertical temperature (solid lines) and dewpoint (dashed) profiles for a typical freezing rain event (left panel) versus last night (right hand panel).

Why was there ice before snow Tues. night? Wes Junker 2011

Blue sky, light wind, temperature 69 F with dewpoint 61.

jhetley: Pending doom? jhetley 2010

Back into the overcast, 54 F and calm with a dewpoint of 50.

jhetley: More gray jhetley 2010

And triple alas, because by 7:30 p.m. the temperature had dropped to the dewpoint, and everything started getting wet as the sky grew hazy.

Jayme Lynn Blaschke's Gibberish 2009

And triple alas, because by 7:30 p.m. the temperature had dropped to the dewpoint, and everything started getting wet as the sky grew hazy.

Archive 2009-11-01 2009

Clouds form when air is cooled to its dewpoint — or the temperature at which, if the air is cooled, it reaches saturation with water.

Clouds 2009

Probably gonna drop into the teens tonight -- dewpoint 19 F, and that can be a clue.

The time is out of joint, O cursed spite . . . jhetley 2008